Your Free T3 Is in Range — and That's the Problem
Women are diagnosed with thyroid conditions at far higher rates than men — but what if the real thyroid crisis isn't being diagnosed at all? In this episode, Dr. Terri breaks down the overlooked, under-tested, and misunderstood reasons why women's thyroid systems fail, and why the standard lab panel almost every clinician runs is only telling half the story.
From the gut's central role in hormone conversion, to the three minerals most women are chronically deficient in, to the enzyme that stress quietly dismantles — Dr. Terri maps out a comprehensive picture of thyroid dysfunction that goes far beyond what most patients hear at a routine checkup.
If you've ever been told "your thyroid is normal" but you're still cold, fatigued, foggy, or stuck — this episode was made for you.
This episode is for women who've been dismissed with a normal TSH, anyone on Synthroid or levothyroxine who's still symptomatic, and clinicians ready to expand their thyroid testing approach.
What you'll discover:
Why women are more vulnerable to thyroid conversion failure — and how hormones, gut health, and chronic stress all play a compounding role [6:21]
The ferritin threshold that makes or breaks T4-to-T3 conversion — and what to do if you fall in the "gray zone" [9:24]
How selenium deficiency can cause thyroid cells to literally burst from the inside out — and the direct link to Hashimoto's most doctors miss [15:39]
The full comprehensive thyroid panel you should be asking for: TSH, free T4, free T3, and TPO antibodies [21:31]
Why a free T3 "within range" is not the same as optimal — and what the bell curve data actually reveals about all-cause mortality risk [22:47]
The deiodase enzyme most clinicians never discuss — and why synthetic T4 medications may be making conversion even harder [27:34]
If your thyroid labs come back "normal" but you're still symptomatic, the problem isn't you — it's the range.
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The Dr. Terri Show is presented by EVEXIAS Health Solutions. For more, visit: https://www.evexias.com
Connect with Dr. Terri: 📱 Instagram: https://www.instagram.com/drterrideneui/ 📱 Facebook: https://www.facebook.com/DrTerriDeNeui 💻 Website: https://hormonehavoc.com/
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00:00:00 — Introduction
00:06:21 — Why Women's Thyroids Are Different
00:09:24 — The Nutrients Your Thyroid Needs (Iron, Iodine, Selenium)
00:16:10 — Hashimoto's, Leaky Gut, and Root Causes
00:19:23 — What Clinicians Get Wrong About Thyroid Labs
00:27:34 — Deiodase Enzymes, Synthroid, and the Conversion Problem
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